PTFE Coated Fiberglass Adhesive Tape

PTFE coated fiberglass adhesive tape combines a woven fiberglass fabric with a PTFE surface coating and a pressure-sensitive silicone adhesive. The fiberglass carrier provides dimensional stability and wear resistance, while the PTFE surface offers low friction and easy release from many molten plastics and adhesive residues. It is commonly used as a replaceable protective layer on heat-sealing equipment, packaging machinery, rollers, chutes, guides, and other process surfaces exposed to heat and repeated mechanical contact.

Key Benefits

• Heat-resistant construction: selected grades are designed for continuous use around heated sealing bars and process equipment.
• Non-stick PTFE surface: helps reduce buildup from PE, PP, PVC, hot-melt adhesive, and other thermoplastic materials.
• Reinforced backing: woven fiberglass improves strength, dimensional stability, and resistance to tearing compared with unsupported PTFE film.
• Low-friction surface: supports smoother web handling and helps protect rollers, guides, and contact surfaces.
• Clean maintenance: the self-adhesive format can be cut, positioned, and replaced without permanently modifying the machine surface.

Typical Applications

• Impulse sealers, continuous band sealers, and bag-making machines
• Heating elements, sealing jaws, pressure bars, and guide rails
• Packaging-film welding and laminating equipment
• Roller wrapping, chute lining, and release surfaces
• Textile drying and processing equipment
• Temporary high-temperature masking where reinforced backing is preferred

Typical Specifications

Values above describe common product configurations and are not a universal specification. Final thickness, adhesion, temperature rating, electrical properties, and tolerances are confirmed by grade on the quotation and technical data sheet.

How to Select the Right Grade

For heat-sealing bars, first confirm the operating temperature, dwell time, contact pressure, bar width, and the material being sealed. A thicker tape normally provides more mechanical durability and cushioning, while a thinner grade transfers heat more quickly and follows small surfaces more easily. For rotating rollers or repeated sliding contact, wear resistance and edge lifting should be evaluated through a production trial.

If the tape will be used for electrical insulation, anti-static handling, or direct food-contact equipment, state that requirement in the inquiry. These applications may require a specific grade, documentation, adhesive system, or validation method. Suitability should be confirmed before volume production rather than assumed from the PTFE surface alone.

Customization and Ordering

Mavis can supply master rolls, slit rolls, die-cut pieces, and custom widths for equipment maintenance or OEM production. Send the required width, length, thickness, quantity, operating temperature, contact surface, and application description. For replacement of an existing tape, a photo, sample, or current technical data sheet helps us match construction and performance more accurately.

Frequently Asked Questions

What is the difference between PTFE fiberglass tape and skived PTFE film tape?

PTFE fiberglass tape has a woven reinforcement, making it better suited to repeated wear, sealing bars, and machine surfaces. Skived PTFE film adhesive tape is smoother and more conformable, making it useful where surface finish, chemical resistance, or low profile is the priority.

Can it be used continuously at high temperature?

Yes, when the selected construction is rated for the actual process. Continuous temperature, peak exposure, load, and dwell time all affect service life, so the final limit must be checked against the selected grade.

Does the tape leave adhesive residue?

Removal performance depends on temperature, exposure time, surface condition, and adhesive grade. Sample testing is recommended for critical equipment or long dwell periods.

Need help selecting a PTFE tape? Contact Mavis with your machine type, operating temperature, roll size, and annual demand.